Potassium phosphite plays a mitigating role in reducing the adverse effects of pathogens in cucumbers

Researchers have once again validated the efficacy of potassium phosphite (kPhi) in managing specific plant diseases. The fully systemic material has previously been used by organic farmers as a means to improve plant vigor and health. However, its use in eliminating various plant pathogens – particularly those that are notorious for developing resistance to conventional fungicides – has only been recently studied. In a relatively new study published in Archives of Phytopathology and Plant Protection, a team of researchers found that kPhi significantly decreased the amount of downy mildew in challenged cucumber plants.

Cucumis sativus (cucumber) plants were inoculated with Pseudoperonospora cubensis for the purposes of this study.